Many services give you an iframe code to show their content on your site, such as a Google Calendar or a map. For safety, Jamroom doesn't allow iframe tags in members' text until you allow them. Then it only shows iframes from domains you list.
You need:
iframe added to the quota's Allowed HTML TagsLook at the src address in your iframe code. For a Google Calendar it starts with https://calendar.google.com/..., so the domain is calendar.google.com.
Open ACP > Modules > Site > iFrame Control (the Allowed Domains tab), add the domain and save.
Open ACP > Modules > Core > System Core > Quota Config and choose the quota of the profile that will hold the iframe.
iframe to the end of the list. The default list is:span,strong,em,a,b,u,i,p,div,br,img,h1,h2,h3,h4,pre,hr,ul,ol,li,sub,sup,table,tbody,th,tr,td
Save. Only give iframes to quotas you trust.
For example, on a profile page made with Page Creator:
That message replaces any iframe whose domain isn't on the Allowed Domains list. Check that the domain you added exactly matches the domain in the iframe's src.